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stm32wl: Fix incomplete RNG initialisation

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This commit is contained in:
Olivier Fauchon
2023-01-23 15:43:17 +01:00
committed by Ron Evans
parent 334a12818d
commit eec915170d
3 changed files with 15 additions and 1 deletions
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src/machine/machine_stm32wlx.go
+6 -1
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@@ -407,7 +407,12 @@ func (t *TIM) enableMainOutput() {
func initRNG() {
stm32.RCC.AHB3ENR.SetBits(stm32.RCC_AHB3ENR_RNGEN)
stm32.RNG.CR.SetBits(stm32.RNG_CR_RNGEN)
// Enable RNG with config.A (See RM0453 22.6.2)
stm32.RNG.CR.Set(0x40F00D40) // RNG Config. A
stm32.RNG.HTCR.Set(0x17590ABC) // MAGIC NUMBER
stm32.RNG.HTCR.Set(0x0000AA74) // HTCR VALUE
stm32.RNG.CR.Set(0x00F00D4C) // CONFIG A + RNG_EN=1 + IE=1
}
//----------